FATFreq Grand Maestro and Empire Ears Raven use 1DD+8BA+4EST and 2DD+5BA+4EST+1BC driver setups respectively. FATFreq Grand Maestro costs $3,334 while Empire Ears Raven costs $3,600. Empire Ears Raven is $266 more expensive. Empire Ears Raven holds a slight 0.1-point edge in reviewer scores (8.4 vs 8.5). Empire Ears Raven has slightly better bass with a 0.3-point edge, Empire Ears Raven has significantly better mids with a 1.2-point edge, FATFreq Grand Maestro has significantly better treble with a 1.5-point edge, FATFreq Grand Maestro has better dynamics with a 0.5-point edge, Empire Ears Raven has significantly better details with a 2.3-point edge and Empire Ears Raven has significantly better imaging with a 1.8-point edge.
Insights
Metric | FATFreq Grand Maestro | Empire Ears Raven |
---|---|---|
Bass | 7.8 | 8 |
Mids | 6.8 | 8 |
Treble | 7.5 | 6 |
Details | 6.8 | 9 |
Soundstage | 9 | 8.5 |
Imaging | 7.3 | 9 |
Dynamics | 8.5 | 8 |
Tonality | 8.2 | 8.2 |
Technicalities | 8 | 8.9 |
FATFreq Grand Maestro Aggregated Review Score
Average Reviewer Scores
Empire Ears Raven Aggregated Review Score
Average Reviewer Scores
FATFreq Grand Maestro Details
Driver Configuration: 1DD+8BA+4EST
Tuning Type: Configurable - Bass-focused to balanced
Price (Msrp): $3,334
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Empire Ears Raven Details
Driver Configuration: 2DD+5BA+4EST+1BC
Tuning Type: n/a
Brand: Empire Ears Top Empire Ears IEMs
Price (Msrp): $3,600
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FATFreq Grand Maestro User Review Score
Average User Scores
Average User Score: n/a
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Empire Ears Raven User Review Score
Average User Scores
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FATFreq Grand Maestro Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.6Gaming Grade
B+Empire Ears Raven Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.1Gaming Grade
A-FATFreq Grand Maestro Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Empire Ears Raven Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
FATFreq Grand Maestro Reviews
The best basshead set. That is all. EXPENSIVE. If you just want bass HBB Punch way better value. Jays Audio Youtube Channel
Is one of those sets that can do it all. Very impressive. Jaytiss Youtube Channel
check links for more info:
See Maestro SE but with worse bass.

The FATFreq Grand Maestro offers a highly adaptable sound signature through its NOAH modules and vocal switches, enabling four distinct tuning profiles. The black NOAH module emphasizes sub-bass "slam," while the blue variant provides tighter "rumble" control; combined with the vocal switch, these allow shifts from a bass-forward signature to a more mid-centric presentation. Bass is deep and authoritative but avoids midrange bleed, while the treble—handled by electrostatic drivers—delivers clarity without sibilance or fatigue.
Technically, it excels in imaging precision and creates an immersive, three-dimensional soundstage that positions instruments with remarkable specificity. However, its large shell size may challenge those with smaller ears, and it demands power-hungry sources—often requiring high-gain amplification to reach full potential. The deluxe package includes both NOAH modules and an upgraded cable, enhancing its tuning flexibility.
Empire Ears Raven Reviews
V/W Shaped. Energetic treble. Great tech. Fun bass and engaging signature. Overpriced? Jays Audio Youtube Channel
Sounds quite hi-fi and grand sounding, but coherency could use work - bass is distinct from the EST tweeters. Precogvision Youtube Channel
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